-/* vm/class.h - class related functions header
+/* src/vm/class.h - class related functions header
- Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
- R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
- C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
- Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
+ E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
+ J. Wenninger, Institut f. Computersprachen - TU Wien
This file is part of CACAO.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
- Contact: cacao@complang.tuwien.ac.at
+ Contact: cacao@cacaojvm.org
Authors: Christian Thalinger
Changes:
- $Id: class.h 1926 2005-02-10 10:47:29Z twisti $
+ $Id: class.h 5088 2006-07-08 20:16:05Z twisti $
*/
#ifndef _CLASS_H
#define _CLASS_H
-#include "vm/tables.h"
+/* forward typedefs ***********************************************************/
+
+typedef struct innerclassinfo innerclassinfo;
+typedef struct extra_classref extra_classref;
+
+
+#include "config.h"
+#include "vm/types.h"
+
+#include "vm/global.h" /* define java_objectheader for j.l.C */
+#include "native/include/java_lang_Class.h"
+
+#include "toolbox/list.h"
+#include "vm/field.h"
+#include "vm/linker.h"
+#include "vm/method.h"
+#include "vm/references.h"
#include "vm/utf8.h"
-/* global variables ***********************************************************/
+/* class state defines ********************************************************/
+
+#define CLASS_LOADING 0x0001
+#define CLASS_LOADED 0x0002
+#define CLASS_LINKING 0x0004
+#define CLASS_LINKED 0x0008
+#define CLASS_INITIALIZING 0x0010
+#define CLASS_INITIALIZED 0x0020
+#define CLASS_ERROR 0x0040
+
+
+/* some macros ****************************************************************/
+
+#define CLASS_IS_OR_ALMOST_INITIALIZED(c) \
+ (((c)->state & CLASS_INITIALIZING) || ((c)->state & CLASS_INITIALIZED))
+
+
+/* classinfo ******************************************************************/
+
+struct classinfo { /* class structure */
+ java_lang_Class object; /* classinfos are also j.l.C objects */
+
+ s4 flags; /* ACC flags */
+ utf *name; /* class name */
+
+ s4 cpcount; /* number of entries in constant pool */
+ u1 *cptags; /* constant pool tags */
+ voidptr *cpinfos; /* pointer to constant pool info structures */
+
+ s4 classrefcount; /* number of symbolic class references */
+ constant_classref *classrefs; /* table of symbolic class references */
+ extra_classref *extclassrefs; /* additional classrefs */
+ s4 parseddescsize; /* size of the parsed descriptors block */
+ u1 *parseddescs; /* parsed descriptors */
+
+ classref_or_classinfo super; /* super class */
+ classinfo *sub; /* sub class pointer */
+ classinfo *nextsub; /* pointer to next class in sub class list */
+
+ s4 interfacescount; /* number of interfaces */
+ classref_or_classinfo *interfaces; /* superinterfaces */
+
+ s4 fieldscount; /* number of fields */
+ fieldinfo *fields; /* field table */
+
+ s4 methodscount; /* number of methods */
+ methodinfo *methods; /* method table */
+
+ listnode listnode; /* linkage */
+
+ s4 state; /* current class state */
+ s4 index; /* hierarchy depth (classes) or index */
+ /* (interfaces) */
+ s4 instancesize; /* size of an instance of this class */
+
+ vftbl_t *vftbl; /* pointer to virtual function table */
+
+ methodinfo *finalizer; /* finalizer method */
+
+ u2 innerclasscount; /* number of inner classes */
+ innerclassinfo *innerclass;
+
+ utf *packagename; /* full name of the package */
+ utf *sourcefile; /* classfile name containing this class */
+ java_objectheader *classloader; /* NULL for bootstrap classloader */
+};
+
+
+/* innerclassinfo *************************************************************/
+
+struct innerclassinfo {
+ classref_or_classinfo inner_class; /* inner class pointer */
+ classref_or_classinfo outer_class; /* outer class pointer */
+ utf *name; /* innerclass name */
+ s4 flags; /* ACC flags */
+};
+
+
+/* extra_classref **************************************************************
+
+ for classrefs not occurring within descriptors
+
+*******************************************************************************/
-extern hashtable class_hash; /* hashtable for classes */
+struct extra_classref {
+ extra_classref *next;
+ constant_classref classref;
+};
+
+
+/* global variables ***********************************************************/
extern list unlinkedclasses; /* this is only used for eager class loading */
extern classinfo *class_java_lang_SecurityManager;
extern classinfo *class_java_lang_String;
extern classinfo *class_java_lang_System;
+extern classinfo *class_java_lang_Thread;
+extern classinfo *class_java_lang_ThreadGroup;
+extern classinfo *class_java_lang_VMThread;
extern classinfo *class_java_io_Serializable;
extern classinfo *class_java_lang_Throwable;
extern classinfo *class_java_lang_VMThrowable;
-extern classinfo *class_java_lang_Exception;
extern classinfo *class_java_lang_Error;
+extern classinfo *class_java_lang_AbstractMethodError;
+extern classinfo *class_java_lang_LinkageError;
+extern classinfo *class_java_lang_NoClassDefFoundError;
+extern classinfo *class_java_lang_NoSuchMethodError;
extern classinfo *class_java_lang_OutOfMemoryError;
+extern classinfo *class_java_lang_Exception;
+extern classinfo *class_java_lang_ClassCastException;
+extern classinfo *class_java_lang_ClassNotFoundException;
+extern classinfo *class_java_lang_IllegalArgumentException;
+extern classinfo *class_java_lang_IllegalMonitorStateException;
+
extern classinfo *class_java_lang_Void;
extern classinfo *class_java_lang_Boolean;
extern classinfo *class_java_lang_Double;
+/* some runtime exception */
+
+extern classinfo *class_java_lang_NullPointerException;
+
+
+/* some classes which may be used more often */
+
+extern classinfo *class_java_lang_StackTraceElement;
+extern classinfo *class_java_lang_reflect_Constructor;
+extern classinfo *class_java_lang_reflect_Field;
+extern classinfo *class_java_lang_reflect_Method;
+extern classinfo *class_java_security_PrivilegedAction;
+extern classinfo *class_java_util_Vector;
+
+extern classinfo *arrayclass_java_lang_Object;
+
+
+/* pseudo classes for the type checker ****************************************/
+
+/*
+ * pseudo_class_Arraystub
+ * (extends Object implements Cloneable, java.io.Serializable)
+ *
+ * If two arrays of incompatible component types are merged,
+ * the resulting reference has no accessible components.
+ * The result does, however, implement the interfaces Cloneable
+ * and java.io.Serializable. This pseudo class is used internally
+ * to represent such results. (They are *not* considered arrays!)
+ *
+ * pseudo_class_Null
+ *
+ * This pseudo class is used internally to represent the
+ * null type.
+ *
+ * pseudo_class_New
+ *
+ * This pseudo class is used internally to represent the
+ * the 'uninitialized object' type.
+ */
+
+extern classinfo *pseudo_class_Arraystub;
+extern classinfo *pseudo_class_Null;
+extern classinfo *pseudo_class_New;
+
+
/* function prototypes ********************************************************/
-void class_init_foo(void);
+/* create a new classinfo struct */
+classinfo *class_create_classinfo(utf *u);
-/* search for class and create it if not found */
-classinfo *class_new(utf *u);
+/* postset's the header.vftbl */
+void class_postset_header_vftbl(void);
-/* without locking (caller already holding lock*/
-classinfo *class_new_intern(utf *u);
+/* set the package name after the name has been set */
+void class_set_packagename(classinfo *c);
-/* search for class in classtable */
-classinfo *class_get(utf *u);
+/* retrieve constantpool element */
+voidptr class_getconstant(classinfo *class, u4 pos, u4 ctype);
+voidptr innerclass_getconstant(classinfo *c, u4 pos, u4 ctype);
-/* remove class from classtable */
-bool class_remove(classinfo *c);
+/* frees all resources used by the class */
+void class_free(classinfo *);
/* return an array class with the given component class */
-classinfo *class_array_of(classinfo *component);
+classinfo *class_array_of(classinfo *component,bool link);
/* return an array class with the given dimension and element class */
-classinfo *class_multiarray_of(s4 dim, classinfo *element);
+classinfo *class_multiarray_of(s4 dim, classinfo *element,bool link);
+
+/* return a classref for the given class name */
+/* (does a linear search!) */
+constant_classref *class_lookup_classref(classinfo *cls,utf *name);
+
+/* return a classref for the given class name */
+/* (does a linear search!) */
+constant_classref *class_get_classref(classinfo *cls,utf *name);
+
+/* return a classref to the class itself */
+/* (does a linear search!) */
+constant_classref *class_get_self_classref(classinfo *cls);
+
+/* return a classref for an array with the given dimension of with the */
+/* given component type */
+constant_classref *class_get_classref_multiarray_of(s4 dim,constant_classref *ref);
+
+/* return a classref for the component type of the given array type */
+constant_classref *class_get_classref_component_of(constant_classref *ref);
+
+/* get a class' field by name and descriptor */
+fieldinfo *class_findfield(classinfo *c, utf *name, utf *desc);
+
+/* search 'classinfo'-structure for a field with the specified name */
+fieldinfo *class_findfield_by_name(classinfo *c, utf *name);
+s4 class_findfield_index_by_name(classinfo *c, utf *name);
+
+/* search class for a field */
+fieldinfo *class_resolvefield(classinfo *c, utf *name, utf *desc, classinfo *referer, bool throwexception);
+
+/* search for a method with a specified name and descriptor */
+methodinfo *class_findmethod(classinfo *c, utf *name, utf *desc);
+methodinfo *class_resolvemethod(classinfo *c, utf *name, utf *dest);
+methodinfo *class_resolveclassmethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool throwexception);
+methodinfo *class_resolveinterfacemethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool throwexception);
+
+bool class_issubclass(classinfo *sub, classinfo *super);
+
+/* some debugging functions */
+
+#if !defined(NDEBUG)
+void class_printflags(classinfo *c);
+void class_print(classinfo *c);
+void class_println(classinfo *c);
+void class_classref_print(constant_classref *cr);
+void class_classref_println(constant_classref *cr);
+#endif
+
+/* debug purposes */
+void class_showmethods(classinfo *c);
+void class_showconstantpool(classinfo *c);
#endif /* _CLASS_H */
projects / cacao.git / blobdiff